Cooled ring carrier for a piston

Details Cooled ring carrier for a piston Cooled ring carrier for a piston

2006-07-04

2006-07-04

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

Reexamination Certificate

active

07069881

ABSTRACT:
The invention relates to a cooled ring carrier that is cast into a piston for internal combustion engines. According to the invention, the zone of the ring carrier facing the cooling channel is coated, thereby preventing air from escaping from the cooling channel through the ring carrier material to the melt during alfination of the cooled ring carrier, and forming oxides.

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